Dynamically adding tabs

[larry104]

Hi,

I'm dynamically adding tabs to a QTabWidget using buttons add/delete tab. In each tab there is a QTableView. Now in each of the QTableViews there should be the possibility to double click on a row. Having only a static single tab+tableView I specified a slot for that table view "on_tableView1_doubleClicked(const QModelIndex &index);" and the code which goes along with that. How can can I do that for the dynamically created table views?

Can someone point me into the right direction?
Thanks.

[jacek]

QObject::connect()

[larry104]

So, when doing that:
QObject::connect(dynTab->tableView, SIGNAL(doubleClicked(QModelIndex &index)),this, SLOT(myTableView_doubleClicked(QModelIndex &index)));

When running it I get an error:
Object::connect: No such signal MyTableView::doubleClicked(QModelIndex&index)
Object::connect: (sender name: 'dynTableView')
Object::connect: (receiver name: 'mainGui')

I have to say the MyTableView was subclassed from QTableView so that I could reimplement startDrag():

class MyTableView : public QTableView
{
  Q_OBJECT
 
public:
  MyTableView(QWidget *parent = 0);
 
protected:
 
void startDrag(Qt::DropActions supportedActions);
 
};

class MyTableView : public QTableView
{
  Q_OBJECT

public:
  MyTableView(QWidget *parent = 0);

protected:

void startDrag(Qt::DropActions supportedActions);

};

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Under getting more do I need to reimplement the signal doubleClicked when subclassing?

[jacek]

QObject::connect(dynTab->tableView, SIGNAL(doubleClicked(QModelIndex &index)),this, SLOT(myTableView_doubleClicked(QModelIndex &index)));

http://www.qtcentre.org/forum/faq.ph...lot_with_names

do I need to reimplement the signal doubleClicked when subclassing?

No, you don't implement signals.

[larry104]

Correcting the connect() syntax to
QObject::connect(dynTab->tableView, SIGNAL(doubleClicked(QModelIndex &)),this, SLOT(myTableView_doubleClicked(QModelIndex &)));
gives me the same error:
Object::connect: No such signal MyTableView::doubleClicked(QModelIndex&)

Strange? Anything else I might miss?

[jnana]

Try with QTableWidget instead of QTableView.

[wysota]

Correcting the connect() syntax to
QObject::connect(dynTab->tableView, SIGNAL(doubleClicked(QModelIndex &)),this, SLOT(myTableView_doubleClicked(QModelIndex &)));
gives me the same error:
Object::connect: No such signal MyTableView::doubleClicked(QModelIndex&)

Strange? Anything else I might miss?

should be "doubleClicked(const QModelIndex &)", note the "const" keyword. In both signal and slot.

[larry104]

Yes, you are right - problem is solved. Thanks a lot.